Antimicrobial susceptibility, phage types, and pulsetypes of Salmonella Typhimurium, in São Paulo, Brazil

A total of 283 Salmonella Typhimurium strains isolated from cases of human infections and non human sources, were examined for antimicrobial susceptibilityand the incidence of resistance was 38% and multiple resistance (to three or more antimicrobials) was 15%. All 43 multidrug-resistant strains (MD...

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Main Authors: Ângela Cristina Rodrigues Ghilardi, Ana Terezinha Tavechio, Sueli Aparecida Fernandes
Format: Article
Language:English
Published: Fundação Oswaldo Cruz (FIOCRUZ) 2006-05-01
Series:Memorias do Instituto Oswaldo Cruz
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762006000300010
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author Ângela Cristina Rodrigues Ghilardi
Ana Terezinha Tavechio
Sueli Aparecida Fernandes
author_facet Ângela Cristina Rodrigues Ghilardi
Ana Terezinha Tavechio
Sueli Aparecida Fernandes
author_sort Ângela Cristina Rodrigues Ghilardi
collection DOAJ
description A total of 283 Salmonella Typhimurium strains isolated from cases of human infections and non human sources, were examined for antimicrobial susceptibilityand the incidence of resistance was 38% and multiple resistance (to three or more antimicrobials) was 15%. All 43 multidrug-resistant strains (MDR) and 13 susceptible ones were characterized by phage typing and pulsed- field gel electrophoresis (PFGE). The strains encompassed 14 definitive phage types (DT), three were untypable (UT), and 18 atypicals or reaction does not conform (RDNC), which belonged to 21 PFGE patterns, A1-A21. The predominant phage types were DT49, DT193, and RDNC and two strains belonging to DT 104 and 104b were also identified. The most commum PFGE patterns were A1 and A8. Analysis by PFGE and phage typing demonstrated that the most of the MDR were multiclonal and association among multiresistance, phage typing, and PFGE patterns was not so significant.
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spelling doaj.art-2e02ce6b15184bb183b37ce15bd5e9892023-08-02T09:28:22ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602006-05-01101328128610.1590/S0074-02762006000300010Antimicrobial susceptibility, phage types, and pulsetypes of Salmonella Typhimurium, in São Paulo, BrazilÂngela Cristina Rodrigues GhilardiAna Terezinha TavechioSueli Aparecida FernandesA total of 283 Salmonella Typhimurium strains isolated from cases of human infections and non human sources, were examined for antimicrobial susceptibilityand the incidence of resistance was 38% and multiple resistance (to three or more antimicrobials) was 15%. All 43 multidrug-resistant strains (MDR) and 13 susceptible ones were characterized by phage typing and pulsed- field gel electrophoresis (PFGE). The strains encompassed 14 definitive phage types (DT), three were untypable (UT), and 18 atypicals or reaction does not conform (RDNC), which belonged to 21 PFGE patterns, A1-A21. The predominant phage types were DT49, DT193, and RDNC and two strains belonging to DT 104 and 104b were also identified. The most commum PFGE patterns were A1 and A8. Analysis by PFGE and phage typing demonstrated that the most of the MDR were multiclonal and association among multiresistance, phage typing, and PFGE patterns was not so significant.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762006000300010Salmonella Typhimuriumphage typesmultidrug-resistant
spellingShingle Ângela Cristina Rodrigues Ghilardi
Ana Terezinha Tavechio
Sueli Aparecida Fernandes
Antimicrobial susceptibility, phage types, and pulsetypes of Salmonella Typhimurium, in São Paulo, Brazil
Memorias do Instituto Oswaldo Cruz
Salmonella Typhimurium
phage types
multidrug-resistant
title Antimicrobial susceptibility, phage types, and pulsetypes of Salmonella Typhimurium, in São Paulo, Brazil
title_full Antimicrobial susceptibility, phage types, and pulsetypes of Salmonella Typhimurium, in São Paulo, Brazil
title_fullStr Antimicrobial susceptibility, phage types, and pulsetypes of Salmonella Typhimurium, in São Paulo, Brazil
title_full_unstemmed Antimicrobial susceptibility, phage types, and pulsetypes of Salmonella Typhimurium, in São Paulo, Brazil
title_short Antimicrobial susceptibility, phage types, and pulsetypes of Salmonella Typhimurium, in São Paulo, Brazil
title_sort antimicrobial susceptibility phage types and pulsetypes of salmonella typhimurium in sao paulo brazil
topic Salmonella Typhimurium
phage types
multidrug-resistant
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762006000300010
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